A thermogenic is a broad term for any supplement that the manufacturer claims will cause thermogenesis , resulting in increased body temperature, increased metabolic rate, and consequently an increased rate in the burning of body fat and weight loss. Until 2004 almost every product found in this supplement category comprised the " ECA stack ": ephedrine , caffeine and aspirin . However, on February 6, 2004 the Food and Drug Administration (FDA) banned the sale of ephedra and its alkaloid , ephedrine, for use in weight loss formulas. Several manufacturers replaced the ephedra component of the "ECA" stack with bitter orange or citrus aurantium (containing synephrine ) instead of the ephedrine.
The side effects associated with steroid abuse are particularly negative for women, resulting in a whole range of various problems and unwanted effects including – but not limited to – deepening of the voice, increased body hair and clitoromegaly , or an abnormal enlargement of the clitoris. So take a look at the following professional female body builders and decide for yourself where you think the boundary between beauty/obsession lies and whether or not these people have left that line so far behind that they begin to lose all traces of their femininity. One note: The portraits are done by photographer Martin Schoeller as part of a series of portraits of female bodybuilders, check out some of his work here .